Home / 55,282.20-82,832.10-31,867.80

Finding the Fourth Proportional to 55,282.20, 82,832.10 and 31,867.80

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Solution

The fourth proportional to 55,282.20, 82,832.10 and 31,867.80 is: 47,749.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,282.20 : 82,832.10 = 31,867.80 : x
  2. Step 2: Convert to fraction form
    55,282.20/82,832.10 = 31,867.80/x
  3. Step 3: Cross multiply
    55,282.20x = 82,832.10 × 31,867.80
  4. Step 4: Simplify right side
    55,282.20x = 2,639,676,796.38
  5. Step 5: Solve for x
    x = 2,639,676,796.38/55,282.20
  6. Step 6: Final answer
    x = 47,749.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.